Java Doc for Context.java in  » Library » Apache-commons-scxml-0.6-src » org » apache » commons » scxml » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Library » Apache commons scxml 0.6 src » org.apache.commons.scxml 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.apache.commons.scxml.Context

All known Subclasses:   org.apache.commons.scxml.env.SimpleContext,
Context
public interface Context (Code)
A Context or "scope" for storing variables; usually tied to a SCXML root or State object.




Method Summary
 Objectget(String name)
     Get the value of this variable; delegating to parent.
 ContextgetParent()
     Get the parent Context, may be null.
 MapgetVars()
     Get the Map of all variables in this Context.
 booleanhas(String name)
     Check if this variable exists, delegating to parent.
 voidreset()
     Clear this Context.
 voidset(String name, Object value)
     Assigns a new value to an existing variable or creates a new one.
 voidsetLocal(String name, Object value)
     Assigns a new value to an existing variable or creates a new one.



Method Detail
get
Object get(String name)(Code)
Get the value of this variable; delegating to parent.
Parameters:
  name - The name of the variable The value (or null)



getParent
Context getParent()(Code)
Get the parent Context, may be null. The parent Context in a chained Context environment



getVars
Map getVars()(Code)
Get the Map of all variables in this Context. Local variable entries MapTo get variables in parent Context, call getParent().getVars().
See Also:   Context.getParent()



has
boolean has(String name)(Code)
Check if this variable exists, delegating to parent.
Parameters:
  name - The name of the variable Whether a variable with the name exists in this Context



reset
void reset()(Code)
Clear this Context.



set
void set(String name, Object value)(Code)
Assigns a new value to an existing variable or creates a new one. The method searches the chain of parent Contexts for variable existence.
Parameters:
  name - The variable name
Parameters:
  value - The variable value



setLocal
void setLocal(String name, Object value)(Code)
Assigns a new value to an existing variable or creates a new one. The method allows to shaddow a variable of the same name up the Context chain.
Parameters:
  name - The variable name
Parameters:
  value - The variable value



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